Mantle-support.



. Patentem Aug. 27, l90l.

T. RODERICK.

@ MANTLE SUPPORT.

(Application filed Feb. as, 1901.

f (llo Iodel.)

WITNESSES IN VE N TOR W a azm A TTOHNEY 1': woman rams co.wuoro-ufuo..wummma. o c.

UNITED STATES PATENT OFFICE.

THOMAS RODERICK, OF COLUMBUS, OHIO.

MANTLE-S U PPO RT.

SIPECIFIGATION forming part of Letters Patent No. 681 ,265, dated August27, 1901. Application filed February 28, 1901. Serial No- 49,324. (Nomodel.)

ToaZZ whom it may concern:

Be it known that I, THOMAS RODERICK, a citizen of the United States,residing at C0- lumbus, in the countyof Franklin and State of Ohio, haveinvented certain new and useful Improvements in Mantle-Supports; and Ido hereby declare the following to be a full, clear, and exactdescription of the in vent-ion, such as will enable others skilled inthe artto which it appertains to make and use the same.

My invention relates more particularly to supports for gas-mantles thatare adjustable vertically.

The object of the invention is to provide a simple andeconomically-constructed device that can be quickly adjusted withoutendangering the integrity of the mantle.

My invention consists, essentially, of a gasburner provided with avertically and directly movable mantle-support located centrally in theburner-tube, combined with a spring to frictionally hold said rod in anyposition to which it is adjusted, the rod being directly movable toefiect the adjustment.

I am aware that it has been proposed to 10- eats a mantle-support%ng rodcentrally with respect to the axis 0 the burner-tube and that it hasbeen proposed to adjust such a rod vertically by means of screw-threadson the rod engaging a nut in the burner. Hence I do not claim, broadly,a centrally-located and vertically-ad j ustable mantle-supporting rod.

. In the accompanyingdrawings, in which I have illustrated an embodimentof my in vention, Figure 1 is an elevation, partially in section, of aburner equipped with my mantle-support. the support removed from theburner.

1 designates the mantle-supporting rod or standard. I

2 designates a spring attached to the lower end of the rod. In the formshown the spring 2 is made in one piece with an inwardly and radiallyextending tongue 2, to'which the lower end of the support is riveted orotherwise secured. The upper end of the rod is furnished with a suitablehook or catch 3, on which the mantle is suspended. This hook or catch 3is shown to be made frictionally attached, but removable, so that whenremoved the upper end of the rod can be passed through a central openingin the gauze tip 5.

Fig. 2 is a perspective view of.

The spring 2 is made so that it must be slightly compressed to beinserted into the burnertube 4, and when so inserted this springfrictionally engages the inner sides of the burner-tube. Bytaking theupper or hook end of the supporting-rod between the fingers the rod canbe adjusted up or down, the rod remaining at the place to which it isadjusted by virtue of the frictional engagement of the spring 2 with theinner sides of the burnertube 4. As mantles are lightin weight,veryslight friction suffices to hold the supportingrod in place.

Many of the mantle'supports now on the market are secured on the outerside of the bnrner tube. In such cases thesupport is likely to warp orbend, thus throwing the mantle out of the vertical, thereby endangeringtheintegrity of the mantle, to say nothing of the effect of this uponthe character of the light. IVith my invention the mantlesupport standscentrally within the mantle and there is less likelihood of any bendingof the rod, because the weight of the mantle is supported along theentire axis of the rod and the heat is equal on all sides of the rod.The rods themselves can, however, be made of some refractory material,so that bending of the rod shall be impossible.

I do not wish it to be understood that I confine myself to theparticular form shown in mydrawings herewith, because the gist of theinvention resides in the mantle-supporting rod with a spring tofrictionally engage the interior side of a burner-tube, and it is quiteobvious that this idea can be embodied in a multiplicity of forms.

What I claim, and desire to secure by Let ters Patent, is

1. In a gas-burner, a mantle-support comprising a rod constructed at itsupper end to support a mantle, a spring attached to said rod to slidablybear against the inner side of the burner-tube, whereby the rod isadjustable vertically with a direct movement thereof, and is held inadjusted position in said tube, substantially as described.

2. A mantle-support for a gas-burner comprising in combination, a rod, aspring 2 of cylindric form having an inwardly .and radially extendingtongue 2 to which the rod is attached, said spring 2 adapted to slidablybear upon the inner side of the burner-tube whereby the rod isadjustable vertically with a direct movement thereof, and is held in adjusted position in said tube, substantially as described.

3. In a gas-burner, a vertically-adjustable mantle support locatedcentrally in the burner-tube, said support comprising a rod constructedat its upper end to sustain a mantle, combined with a spring tofrictionally hold said rod in any position to which it is adjustable insaid burner-tube, the rod being adjustable with a direct verticalmovement thereof, substantially as described.

4. In a gas-burner, the combination witha burner-tube, a foraminous tiptherefor, 21. cen-.

tral opening for the movement of a mantlesupporting rod in'said tip, amantle-supporting rod extending through the central opening in the tip,a spring to frictionally hold said rod in any position to which it isadjustable in said burner-tube, substantiallyas described.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS RODERICK.

WVitnesses:

S. W. LATHAM,

. GEO. M. FINCKEL.

